载人深空长期飞行辐射粒子的磁场防护探讨

发布时间：2018-01-20 23:21

本文关键词： 载人飞行辐射粒子辐射危害磁场防护　出处：《航天器工程》2016年06期 　论文类型：期刊论文

【摘要】：简介了空间辐射环境中的银河宇宙线和太阳质子事件及其对航天员的辐射危害;根据辐射危害防护需求,比较了磁场偏转、电场抵消和等离子体偏转3种防护方法的原理和优缺点;对载人火星探测选用的磁场防护方法进行了初步分析和数值仿真。分析表明:偏转200 MeV能量以下的质子,须在航天器上建造半径2.04km,质量2240kg,通过电流1600A的环形线圈。此方法可以使进入航天器舱室的宇宙线粒子总通量降低3个数量级,能显著地降低空间粒子对航天员的危害。分析结果可为载人深空飞行项目的任务规划、载人飞船设计、辐射危害评价防护措施的制定等提供参考。
[Abstract]:The galactic cosmic rays and solar proton events in space radiation environment and their radiation hazards to astronauts are briefly introduced. According to the requirements of radiation hazard protection, the principle, advantages and disadvantages of three protection methods, magnetic field deflection, electric field offset and plasma deflection, are compared. The magnetic field protection method used for manned Mars exploration is analyzed and numerically simulated. The results show that protons with a deflecting energy of less than 200 MeV must be built in a spacecraft with a radius of 2.04km. The total flux of cosmic ray particles entering the spacecraft cabin can be reduced by three orders of magnitude by the loop coil with a mass of 2240kg and a current of 1600A. The results can provide a reference for the mission planning of manned deep space flight project, the design of manned spacecraft and the formulation of radiation hazard assessment and protection measures.
【作者单位】：中国科学院国家空间科学中心;沈阳出入境检验检疫局;
【基金】：国家自然科学基金(410404149)
【分类号】：V520.6
【正文快照】： 1引言随着人类太空探索活动的不断发展,美、欧及中国各国家陆续展开了以火星、月球探测为代表的深空探测任务[1-2],使得人类对深空了解不断深入,同时反过来也不断激励人类对于其他星球探索的热情,载人深空飞行正在成为航天发展的重要趋势[3-6]。地球强大地磁场阻止了宇宙线高

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